@stephenw10
Happy new year!
Yes, the risks are negligeable. I won't lose a penny if the network fails and I can easily make it up and running. I don't expect it to fail often nor fail for a long time thanks to the USB failover, back up, hardware failover (cold backup with exact same laptop and same configuration), etc.
In any case, I just easily can shut down my PFsense router or DHCP server and switch the VLANs to switch the DHCP server to the WAN1 or WAN2. It isn't difficult.
Furthermore, my family all has 4G and can use it as hotspot... Android smartphones, moreover, switch to 4g automatically when the connection isn't stable. Thus that is not at all big deal.
Thanks,